<?xml version="1.0" encoding="UTF-8"?>
<dxl:DXLMessage xmlns:dxl="http://greenplum.com/dxl/2010/12/">
  <dxl:Comment><![CDATA[
	Objective: When outer child of a correlated NLJ is universal, ensure that a
	singleton-segment distribution spec is requested on the inner child, when
	inside a DML query.
 
	create table t1(a int);
	create table target_table(a int);

	-- enforce correlated execution
	set optimizer_enforce_subplans=on;

	explain insert into target_table select * from (select 1) as tab where exists(select * from t1);
                                                     QUERY PLAN
--------------------------------------------------------------------------------------------------------------------
 Insert  (cost=0.00..882688.06 rows=1 width=4)
   ->  Redistribute Motion 1:3  (slice2; segments: 1)  (cost=0.00..882688.05 rows=1 width=8)
         Hash Key: "outer".?column?
         ->  Result  (cost=0.00..882688.05 rows=1 width=8)
               ->  Result  (cost=0.00..882688.05 rows=1 width=1)
                     Filter: (SubPlan 1)
                     ->  Result  (cost=0.00..0.00 rows=1 width=1)
                     SubPlan 1  (slice2; segments: 1)
                       ->  Limit  (cost=0.00..431.00 rows=1 width=4)
                             ->  Materialize  (cost=0.00..431.00 rows=1 width=4)
                                   ->  Gather Motion 3:1  (slice1; segments: 3)  (cost=0.00..431.00 rows=1 width=4)
                                         ->  Table Scan on t1  (cost=0.00..431.00 rows=1 width=4)
  ]]>
  </dxl:Comment>
  <dxl:Thread Id="0">
    <dxl:OptimizerConfig>
      <dxl:EnumeratorConfig Id="0" PlanSamples="0" CostThreshold="0"/>
      <dxl:StatisticsConfig DampingFactorFilter="0.750000" DampingFactorJoin="0.010000" DampingFactorGroupBy="0.750000" MaxStatsBuckets="100"/>
      <dxl:CTEConfig CTEInliningCutoff="0"/>
      <dxl:WindowOids RowNumber="3100" Rank="3101"/>
      <dxl:CostModelConfig CostModelType="1" SegmentsForCosting="3">
        <dxl:CostParams>
          <dxl:CostParam Name="NLJFactor" Value="1024.000000" LowerBound="1023.500000" UpperBound="1024.500000"/>
        </dxl:CostParams>
      </dxl:CostModelConfig>
      <dxl:Hint JoinArityForAssociativityCommutativity="18" ArrayExpansionThreshold="100" JoinOrderDynamicProgThreshold="10" BroadcastThreshold="10000000" EnforceConstraintsOnDML="false"/>
      <dxl:TraceFlags Value="102074,102146,102120,103001,103014,103015,103021,103022,104003,104004,104005,105000,106000"/>
    </dxl:OptimizerConfig>
    <dxl:Metadata SystemIds="0.GPDB">
      <dxl:RelationStatistics Mdid="2.16391.1.0" Name="t1" Rows="0.000000" EmptyRelation="true"/>
      <dxl:Relation Mdid="6.16391.1.0" Name="t1" IsTemporary="false" HasOids="false" StorageType="Heap" DistributionPolicy="Hash" DistributionColumns="0" Keys="7,1" NumberLeafPartitions="0">
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          <dxl:Column Name="a" Attno="1" Mdid="0.23.1.0" Nullable="true" ColWidth="4">
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            <dxl:DefaultValue/>
          </dxl:Column>
          <dxl:Column Name="xmin" Attno="-3" Mdid="0.28.1.0" Nullable="false" ColWidth="4">
            <dxl:DefaultValue/>
          </dxl:Column>
          <dxl:Column Name="cmin" Attno="-4" Mdid="0.29.1.0" Nullable="false" ColWidth="4">
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          </dxl:Column>
          <dxl:Column Name="xmax" Attno="-5" Mdid="0.28.1.0" Nullable="false" ColWidth="4">
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          </dxl:Column>
          <dxl:Column Name="cmax" Attno="-6" Mdid="0.29.1.0" Nullable="false" ColWidth="4">
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          </dxl:Column>
          <dxl:Column Name="tableoid" Attno="-7" Mdid="0.26.1.0" Nullable="false" ColWidth="4">
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          </dxl:Column>
          <dxl:Column Name="gp_segment_id" Attno="-8" Mdid="0.23.1.0" Nullable="false" ColWidth="4">
            <dxl:DefaultValue/>
          </dxl:Column>
        </dxl:Columns>
        <dxl:IndexInfoList/>
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    </dxl:Metadata>
    <dxl:Query>
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        <dxl:LogicalSelect>
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                <dxl:Columns>
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                  <dxl:Column ColId="5" Attno="-3" ColName="xmin" TypeMdid="0.28.1.0" ColWidth="4"/>
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                  <dxl:Column ColId="7" Attno="-5" ColName="xmax" TypeMdid="0.28.1.0" ColWidth="4"/>
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          </dxl:LogicalProject>
        </dxl:LogicalSelect>
      </dxl:LogicalInsert>
    </dxl:Query>
    <dxl:Plan Id="0" SpaceSize="16">
      <dxl:DMLInsert Columns="1" ActionCol="14" CtidCol="0" SegmentIdCol="0">
        <dxl:Properties>
          <dxl:Cost StartupCost="0" TotalCost="882688.057927" Rows="1.000000" Width="4"/>
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        <dxl:TableDescriptor Mdid="6.16388.1.0" TableName="target_table">
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        <dxl:RedistributeMotion InputSegments="0" OutputSegments="0,1,2">
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            </dxl:Properties>
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                            <dxl:Columns>
                              <dxl:Column ColId="2" Attno="1" ColName="a" TypeMdid="0.23.1.0" ColWidth="4"/>
                              <dxl:Column ColId="3" Attno="-1" ColName="ctid" TypeMdid="0.27.1.0" ColWidth="6"/>
                              <dxl:Column ColId="4" Attno="-3" ColName="xmin" TypeMdid="0.28.1.0" ColWidth="4"/>
                              <dxl:Column ColId="5" Attno="-4" ColName="cmin" TypeMdid="0.29.1.0" ColWidth="4"/>
                              <dxl:Column ColId="6" Attno="-5" ColName="xmax" TypeMdid="0.28.1.0" ColWidth="4"/>
                              <dxl:Column ColId="7" Attno="-6" ColName="cmax" TypeMdid="0.29.1.0" ColWidth="4"/>
                              <dxl:Column ColId="8" Attno="-7" ColName="tableoid" TypeMdid="0.26.1.0" ColWidth="4"/>
                              <dxl:Column ColId="9" Attno="-8" ColName="gp_segment_id" TypeMdid="0.23.1.0" ColWidth="4"/>
                            </dxl:Columns>
                          </dxl:TableDescriptor>
                        </dxl:TableScan>
                      </dxl:GatherMotion>
                    </dxl:Materialize>
                    <dxl:LimitCount>
                      <dxl:ConstValue TypeMdid="0.20.1.0" Value="1"/>
                    </dxl:LimitCount>
                    <dxl:LimitOffset>
                      <dxl:ConstValue TypeMdid="0.20.1.0" Value="0"/>
                    </dxl:LimitOffset>
                  </dxl:Limit>
                </dxl:SubPlan>
              </dxl:Filter>
              <dxl:OneTimeFilter/>
              <dxl:Result>
                <dxl:Properties>
                  <dxl:Cost StartupCost="0" TotalCost="0.000001" Rows="1.000000" Width="1"/>
                </dxl:Properties>
                <dxl:ProjList>
                  <dxl:ProjElem ColId="0" Alias="">
                    <dxl:ConstValue TypeMdid="0.16.1.0" Value="true"/>
                  </dxl:ProjElem>
                </dxl:ProjList>
                <dxl:Filter/>
                <dxl:OneTimeFilter/>
              </dxl:Result>
            </dxl:Result>
          </dxl:Result>
        </dxl:RedistributeMotion>
      </dxl:DMLInsert>
    </dxl:Plan>
  </dxl:Thread>
</dxl:DXLMessage>
